How to Pay Corporation Tax Online & Manage Cash Flow Efficiently
Managing how to pay corporation tax online can be a challenge for businesses. Whether you’re an established entrepreneur or a new company owner, staying compliant while maintaining strong cash flow is essential.
This guide explains everything you need to know about paying corporation tax online, including how to avoid penalties, the best payment methods, and why taking out a corporation tax loan can help you manage large tax bills without disrupting business growth.
What Is Corporation Tax?
Corporation tax is a tax on company profits. Every UK-based limited company must pay it, regardless of size or industry. The tax is set by HMRC and applies after deducting allowable expenses and tax reliefs.
If you’re running a business, you must understand how to pay corporation tax online in time to meet your deadlines and keep your finances in check.
Who Needs to Pay Corporation Tax?
Your company must pay corporation tax online if:
- You operate as a limited company in the UK.
- You’re a foreign company with a UK branch or office.
- You run a club, co-operative, or unincorporated association that generates profits.
Even if your company makes no profit or operates at a loss, you must still file a corporation tax return with HMRC. Missing deadlines can result in hefty penalties and added interest charges.
How to Calculate Corporation Tax
Corporation tax is based on taxable profits. Here’s how it’s calculated:
- Determine Total Income – Includes revenue from sales, services, and investments.
- Subtract Allowable Expenses – Deduct business costs like salaries, rent, and utilities.
- Apply Tax Reliefs – Consider deductions like R&D tax credits and capital allowances.
- Calculate Taxable Profits – This final figure is what HMRC taxes.
Corporation Tax Rates in 2025:
- 25% for profits over £250,000
- 19% for profits up to £50,000
- Tapered rate between £50,000 and £250,000
Understanding how to pay corporation tax online efficiently helps businesses reduce tax liabilities and maintain healthy cash flow.

How to Pay Corporation Tax Online
Paying corporation tax online is the most efficient and reliable method to settle your tax bill. It ensures your payment is processed quickly, helps you avoid late penalties, and allows for better financial tracking. Whether you’re making a one-time payment or setting up recurring payments, HMRC offers multiple online payment options to suit your business needs.
Same-Day or Next-Day Payments:
If your deadline is approaching, choose:
- Faster Payments (Online or Mobile Banking)
- CHAPS (Bank Transfer)
- Corporate Credit/Debit Card (fees apply)
Three-Day Processing Payments:
For standard payments, use:
- BACS (Bank Transfer)
- Direct Debit (One-Off Payment)
Five-Day Processing Payments:
For recurring payments, set up:
- Direct Debit (Recurring Payment)
When paying corporation tax online, always include your 17-digit payment reference number from HMRC to ensure your payment is processed correctly.
For HMRC’s payment details, visit the HMRC Website.

Struggling to Pay Your Corporation Tax? Here’s a Solution
A corporation tax bill can take a significant chunk out of your cash reserves, making it harder to cover operational costs, invest in growth, or manage unexpected expenses.
Option 1: Time to Pay (TTP) Arrangement
HMRC offers payment plans under the Time to Pay (TTP) scheme, allowing businesses to spread their tax bill over several months. However, HMRC approval is not guaranteed, and missing a payment can lead to penalties.
Option 2: Corporation Tax Loan
A corporation tax loan allows you to:
✔ Spread payments over 3 to 12 months
✔ Avoid penalties and interest from late payments
✔ Free up cash for growth and day-to-day expenses
✔ Maintain a healthy credit record with HMRC
Many businesses use corporation tax loans to avoid disrupting cash flow while staying compliant. This option can be faster and more flexible than negotiating with HMRC.
Why Work With First Oak Capital?
At First Oak Capital, we help businesses pay their corporation tax on time while keeping cash flow strong.
- Quick Approvals – Get financing before your deadline.
- Flexible Repayment Terms – Spread payments over 3-12 months.
- Competitive Rates – Borrow affordably without straining your business.
- Seamless Process – Fast funding with minimal hassle.
If you need support paying your corporation tax, we’re here to help.
Q: Can I pay corporation tax online in instalments?
A: Yes. You can set up a Time to Pay arrangement with HMRC or use a corporation tax loan to spread the cost.
Q: How do I check if my corporation tax payment has been received?
A: Log into your HMRC online account to track payment status.
Q: Can I pay corporation tax with a credit card?
A: Yes, but corporate credit cards incur fees. Debit cards are free to use.
Q: What happens if I can’t pay my corporation tax on time?
A: You may face penalties and interest. Contact HMRC before the deadline or consider a corporation tax loan to avoid financial strain.
Q: What’s the fastest way to pay corporation tax online?
A: Faster Payments, CHAPS, or a corporate debit card will process payments same-day.
Q: Do all businesses need to pay corporation tax?
A: All limited companies must pay, but sole traders and partnerships pay Income Tax instead.